Slides_aula28

public static void main(String[] args) {\n for (String arg : args)\n System.out.println(arg);\n}\n\n$ java AreaPiscina\n\n$ java AreaPiscina oba\noba\n$ java AreaPiscina oba 23\noba\n23\n$ java AreaPiscina oba 23 eba\noba\n23\neba class AreaPiscina { ... AreaPiscina() { double[] aux = {1500, 1100, 750, 500}; this.proces = aux; this.ratio = 10; } static int tipoMat(String nome) { for (int i = 0; i < (names.length); i++) { if (names[i].equals(nome)) return (i); } return (-1); } } public static void main(String[] args) { if (args.length != 1) System.out.println(\"Numero de parametro invalido\"); else { AreaPiscina p = new AreaPiscina(); int material = AreaPiscina.tipoMat(args[0]); if (material == -1) { System.out.println(p.valor(p.area(), material)); } else System.out.println(\"Material invalido\"); } } } $ java AreaPiscina Plastico 157079.623679498607 $ java AreaPiscina Aluminio 471238.8980346896 class AreaPiscina { ... AreaPiscina(double radio) { this(); this.ratio = radio; } ... } public static void main(String[] args) { if (args.length != 2) System.out.println(\"Numero de parametro invalido\"); else { int material = AreaPiscina.tipoMat(args[0]); AreaPiscina p = new AreaPiscina(Double.parseDouble(args[1])); if (material == -1) System.out.println(\"Material invalido\"); else System.out.println(p.valor(p.area(), material)); } } $ java AreaPiscina Alvernaria 10 471238.8980346896 $ java AreaPiscina Alvernaria 20 1884055.5921538759 } public boolean gravarAny(String nome) {\n if (nome == null) return false;\n File arq = new File(nome);\n try {\n FileWriter writer = new FileWriter(arq,false);\n } catch(IOException ioe) { return(false); }\n return(true);\n} public boolean gravarAny(String nome) {\n if (nome == null) return false;\n File arq = new File(nome);\n try {\n FileWriter writer = new FileWriter(arq,false);\n for (Residencial r : this.condominio) {\n if (r.casa != null) {\n writer.write(\"Casa: Área: \" +\n r.casa.area() + \"\\n\");\n }\n if (r.piscina != null) {\n writer.write(\"Piscina: Área: \" +\n r.piscina.area() + \"\\n\");\n }\n }\n writer.close();\n } catch(IOException ioe) { return(false); }\n return(true);\n} public static void main(String[] args) {\n CasaBat cr = new CasaBat(10,5,1320);\n CasaQuad eq = new CasaQuad(10,1523);\n Projeto p = new Projeto();\n p.condominio[0] = new Residencia(cr, null);\n p.condominio[1] = new Residencia(eq, null);\n if (p.gravanArg(\"obá\")) {\n System.out.println(\"Problema\");\n }\n}\n\nimport java.util.Scanner;\nimport java.io.FileNotFoundException;\n...\n\npublic static void main(String[] args) {\n try {\n File arg = new File(\"obá\");\n Scanner sc = new Scanner(arg);\n while (sc.hasNext()) {\n System.out.println(sc.nextLine());\n }\n sc.close();\n } catch (FileNotFoundException fnf) {\n System.out.println(fnf.getMessage());\n }\n}